Cypher/Cipher Encode & Decode

Welcome, Agent.

Cypher or Cipher, this is the question. Well "No!" not really both are correct. Generate your own encoded messages using Caesar, Atbash, and Vigenère. Then you can you this tool to decode/decipher coded messages too. These are only intended for fun and not secure like the Self Destructing Message. You can use this to help you crack the codes generated in the Puzzle section.
I don't think Alan Turing will be too worried just yet.....

Select Cypher/Cipher

Caesar Atbash Vigenère

Shift Amount

Keyword Use only letters for the keyword (no spaces or special characters)

Text to Encode

Result

A substitution cypher where each letter is shifted by a fixed number of positions in the alphabet.

A simple substitution cypher that reverses the alphabet (A becomes Z, B becomes Y, etc.).

A polyalphabetic substitution cypher that uses a keyword to shift letters, making it more secure than the Caesar cipher.

Cypher/Cipher Encode & Decode

Welcome, Agent.

Select Cypher/Cipher

Caesar Cypher/Cipher

Atbash Cypher/Cipher

Vigenère Cypher/Cipher